Marco Antonio Acevedo Mosqueda1, Emmanuel Martínez Zavala1, Maria Elena Acevedo Mosqueda1, and Oleksiy Pogrebnyak2
1 Department of Telecommunications Section of Postgraduate Studies and Research, School of Mechanical and Electrical Engineering Zacatenco, DF, Mexico, (email: macevedo@ipn.mx, emz06@hotmail.com, eacevedo@ipn.mx).
2 Center for Computing Research, National Polytechnic Institute (CIC–IPN), DF, México, (e–mail: olek@cic.ipn.mx).
Manuscript received April 17, 2012.
Manuscript accepted November 20, 2012.
]]> Abstract
At present, the systems of mobile communications demand major capacity in the services, therefore optimum space diversity is needed. In this paper, we propose a new method of beam–forming to improve the space diversity and achieve frequency reuse. Our proposal consists in solving a system of linear equations from an 8–elements linear antenna array that increases the size of the side lobes. This method is compared with the algorithm of Dolph–Chebyshev. Our method shows competitive results in increasing the space diversity.
Key words: Beamforming, Space diversity, Linear antenna array, Dolph–Chebyshev.
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REFERENCES
[1] M. Alanis, I. Elshafiey, A. Al–Sanie, "Multi–User Detection for SDMA–OFDM Communication Systems," IEEE, 2011. [ Links ]
[2] A.l. Sulyman, M. Hefnawi, "Capacity–aware linear MMSE detector for OFDM–SDMA Systems", Institution of Engineering and Technology, 2010. [ Links ]
[3] Ch. Santhi Rani, P. V. Subbaiah, K. Chennakesava Reddy, S. Sudha Rani, "LMS and RLS Algorithms for smart antennas in a W–CDMA mobile communication environment, " ARPN Journal of engineering and applied sciences, vol. 4, No. 6, 2009. [ Links ]
[4] S. Bellofiore, J.Foutz, R. Govindarajula,C.A.Balanis, " Smart antenna system analysis, integration and performance for mobile ad–hoc networks, " IEEE, vol. 50, No. 5, 2002. [ Links ]
[5] I. Villordo, I.E. Zaldivar, "An Overview of SDMA in Communications Systems," IEEE, 2006. [ Links ]
[6] M. P. Lotter, P.Rooyen, "Space Division Multiple Access for Cellular CDMA," IEEE, 1998. [ Links ]
[7] G.M. Galvan, M. Botello, "Acceso multiple por division de espacio:una nueva dimension, " ESIME–IPN, 2004. [ Links ]
[8] J.L Ramos, M. J. Martínez, G. A. Vega, M. S. Ruiz, "Software para el cálculo de patrones de radiación de arreglos lineales de antenas," Conferencia de Ingeniería Eléctrica, 2001. [ Links ]
[9] M. A. Acevedo, R.Castañeda, Oleksiy–Pogrebnyak,"Diseño de antenas de ranura resonante para su aplicación en redes WiFi," ESIME–IPN, vol. 13, No.1, 2009. [ Links ]
[10] Gross, Frank, Smart Antennas for Wireless Communication, McGraw–Hill, 2005. [ Links ]
[11] C, A, Balanis, Antenna theory: Analysis and Design, John Wiley and Sons, New York, 1982. [ Links ]
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